Abstract: The disclosure discloses a method and device for data transfer over a plurality of links, the method including: selecting, by a transmitting device, a virtual link over which a data packet needs to be transmitted, from a plurality of virtual links; determining, by the transmitting device, a physical link corresponding to the selected virtual link according to a binding relationship between the virtual link and the physical link; and transmitting, by the transmitting device, the data packet to a receiving device over the determined physical link; wherein the data packet includes an Internet Protocol (IP) address corresponding to the virtual link, and the plurality of virtual links correspond to the same IP address.

Abstract: The disclosure discloses a method and device for data transfer over a plurality of links, the method including: selecting, by a transmitting device, a virtual link over which a data packet needs to be transmitted, from a plurality of virtual links; determining, by the transmitting device, a physical link corresponding to the selected virtual link according to a binding relationship between the virtual link and the physical link; and transmitting, by the transmitting device, the data packet to a receiving device over the determined physical link; wherein the data packet includes an Internet Protocol (IP) address corresponding to the virtual link, and the plurality of virtual links correspond to the same IP address.

Abstract: A multilink bandwidth allocation method device for a mobile network based on signal strength is provided. The method involves obtaining the base stations of the operators connecting with each link in the aggregation link, a theoretical bandwidth of each link, information of the signal strength of the base station received by the mobile device at the current time; calculating a floating ratio of the bandwidth of each link at the next time interval according to the obtained signal strength of the base station received by the mobile device; obtaining a prediction value of the bandwidth of each link at the next time interval according to the floating ratio of the bandwidth of each link and the theoretical bandwidth; and allocating the bandwidth for the data transmission at the next time interval between the mobile device and the base station according to the prediction value of the bandwidth of each link.

Abstract: The disclosure includes receiving, by a receiver, an authentication request carrying identify authentication information sent from a sender based on the application layer security connection; after the receiver verifies that the sender is legal according to the identify authentication information, assigning and storing identity information and a first authentication parameter; receiving, by the receiver, a synchronization SYN packet carrying the identity information and a first session key sent from the sender; searching, by the receiver, the first authentication parameter corresponding to the stored identity information carried by the SYN packet, and obtaining a second session key through encrypting the first authentication parameter using the encryption algorithm; and when the first session key matches with the second session key, replying, by the receiver, synchronization confirmation SYN+ACK packet to the sender, and establishing a masterflow connection with the sender after receiving the confirmation ACK